Daigo Saito (斎藤 太吾, Saitō Daigo, 7 March 1980, Saitama) is a Japanese professional drifting driver, currently competing in the D1 Grand Prix series and Formula Drift Japan for TMAR. Formerly competing in Formula DRIFT USA and World Championship series for Achilles Radial. He was the first driver to win the two drifting majors, D1GP in 2008 and Formula D in 2012.